| 1921 SAFL premiership season | |
|---|---|
 41st SAFL season | |
| Teams | 8 |
| Premiers | Port Adelaide 9th premiership |
| Minor premiers | Port Adelaide 13th minor premiership |
| Magarey Medallist | John Karney West Torrens (5 votes) Charlie Adams Port Adelaide (5 votes) Dan Moriarty South Adelaide (5 votes) Wat Scott Norwood (5 votes) |
| Leading goalkicker | Roy Bent Norwood (42 goals) |
| Matches played | 61 |
| Highest | 34,000 (Grand Final, Port Adelaide vs Norwood) |
The 1921 South Australian Football League season was the 42nd season of the top-level Australian rules football competition in South Australia.
The competition expanded from seven to eight teams with Glenelg being admitted to the seniors after one year in the B Grade (Reserves).[1]
The season opened on Saturday 7 May with the opening fixture between West Adelaide and Glenelg, and concluded on Saturday 8 October with the Grand Final, in which Minor Premiers Port Adelaide went on to record its 9th premiership, defeating Norwood by 8 points.
South Adelaide, Sturt also made the top (final) four teams and participated in the finals series. North Adelaide, West Torrens, West Adelaide, Glenelg all missed the top four. Glenelg finished winless (as they also did in next three seasons 1922–1924) to "win" the wooden spoon in its first season.[2]
- ^ "Glenelg Football Club". Glenelg Guardian (Sa : 1914 – 1936). 24 February 1921. p. 1.
- ^ "Glenelg".